What a fun thread!
I like Basis Bar for Sensitive Skin to wash my face. It is very reasonably priced. I also use Cetaphil...which I have purchased at Costco.
For a cream/moisturizer...I usually use ROC...which you can simply purchase at the drugstore.
Another thing I do, is use a Retin A RX...but I only use this once or twice a week. This is on the expensive side, but since I only use a little and not often, it lasts a long time.
Recently, I have added a Vitamin C cream that I got at Merle Norman Cosmetics. This is a little expensive, but I only use it a few times a week (and very little).
For me, sticking to a regular routine has kept my complextion very nice.
I do think the Retinol has helped...but I am pleased to report that it doesn't take much to get good results and this keeps the costs down.